PRELIMINARY
45
TM
V•I Chip
VIC-in-a-Brick
Intermediate Bus Converters
Quarter-Brick, 48 Vin Family
3 to 48 Vdc Bus Voltages; 100 A - 600 W Output
Features
• Up to 600 W
• 95% efficiency @ 3 Vdc
• 600 W @ 55ºC, 400 LFM
• 125°C operating temperature
• 400 W/in3 power density
• 38-55 Vdc input range
• 100 V input surge for 100 ms
• SAC topology
+V•I+
– –
K
©
• Low noise ZCS/ZVS architecture
• 3.5 MHz switching frequency
• Fast dynamic response
• Parallelable, with fault tolerance
• 2,250 Vdc basic insulation
Absolute Maximum Ratings
Product Overview
These "VIC-in-a-Brick" Intermediate Bus
Converter (IBC) modules use Vicor’s
V•I Chip Bus Converter Modules (BCM)
to achieve the highest performance for
Intermediate Bus Architecture applications.
Operating from a 38-55 Vdc input, ten
different fixed ratio outputs are available
from 3 to 48 Vdc. You can choose the
intermediate bus voltage that is optimal for
your system and load requirements.
Parameter
Rating
Unit
Notes
+In to –In voltage
Continuous
Surge
-1.0 to +60.0
100
Vdc
Vdc
<100ms
PC to –In voltage
-0.3 to +7.0
Vdc
Isolation voltage
Input to output
Basic Insulation
2,250
1,500
Vdc
Vdc
In/Out to heat sink
Operating temperature
-40 to +125
°C
Junction
Pin soldering temperature
These quarter-bricks are available with a
single BCM, rated up to 300 W or 70 A, or
with dual BCMs, capable of 600 W or 100 A.
Dual output pins are used for output
currents over 50 A.
Wave
Hand
500 (260)
750 (390)
°F (°C)
°F (°C)
<5 sec
<7 sec
Thermal Resistance and Capacity
Utilizing breakthrough Sine Amplitude
Converter (SAC) technology, BCMs offer
the highest efficiency, lowest noise, fastest
transient response and highest power
density. And full load power is available at
55ºC with only 200 LFM of air for single
BCM versions and 400 LFM for dual BCM
versions, without a heatsink.
Parameter
Typ
13.3
11.7
6.1
Unit
°C/W
°C/W
°C/W
°C/W
Ws/°C
Ws/°C
VIC to ambient; 0 LFM (Single BCM)
VIC to ambient; 0 LFM (Dual BCM)
VIC to ambient; 200 LFM (Single BCM)
VIC to ambient; 200 LFM (Dual BCM)
Thermal capacity (Single BCM)
Thermal capacity (Dual BCM)
4.3
14.3
22.8
Vicor Corporation Tel: 800-735-6200 vicorpower.com
Quarter-Brick Intermediate Bus Converters
Rev. 1.3
Page 1 of 8
Factorized Power